Big Green Egg Guestbook Why Is There A Big Green Spot When I Turn Off My Tv?

Why is there a big green spot when i turn off my tv? - big green egg guestbook

I have this big TV that someone threw it and the cord was broken, so I took a lamp and a cable connected and fixed cable. If everything goes smoothly on it now, except when I turn them off is a green dot, slowly disappears into the middle of the cans, what? This radiation is harmful, or what?